need help with custom docker and dockerfile

I am trying to host a discord bot that I am putting together which I have hosted on a private github repo being pushed to docker hub to install as a container on my unraid server.

Issue is, it for some reason isn't updating the installed dependencies when I add a new one to my requirements.txt

I am a huge novice when it comes to docker and was hoping someone can shed some light on what im doing wrong?

Here is my dockerfile omitting private info

# Use an official Python runtime as a parent image

FROM python:3.10-slim

# Install git and upgrade pip

RUN apt-get update && \

apt-get install -y git && \

pip install --upgrade pip && \

rm -rf /var/lib/apt/lists/*

# Set the working directory

WORKDIR /app

# Copy the entrypoint script into the container

COPY docker-entrypoint.sh /app/docker-entrypoint.sh

# Make the entrypoint script executable

RUN chmod +x /app/docker-entrypoint.sh

# Set the entrypoint

ENTRYPOINT ["/app/docker-entrypoint.sh"]

# Default command

CMD []

and here is my docker-entrypoint.sh file

set -e

TARGET_BRANCH=${GIT_BRANCH:-main}

APP_DIR="/app"

GIT_SOURCE_DIR="/app_source_repo"

if [ -z "$GITHUB_TOKEN" ]; then echo "Error: GITHUB_TOKEN not set."; exit 1; fi

if [ -z "$GIT_REPO_URL" ]; then echo "Error: GIT_REPO_URL not set."; exit 1; fi

echo "Ensuring git repository ($GIT_REPO_URL, branch $TARGET_BRANCH) is up to date in $GIT_SOURCE_DIR..."

AUTH_GIT_REPO_URL=$(echo "$GIT_REPO_URL" | sed "s|https://|https://x-access-token:${GITHUB_TOKEN}@|")

if [ -d "$GIT_SOURCE_DIR/.git" ]; then

echo "Existing repository found in $GIT_SOURCE_DIR. Attempting to update..."

cd "$GIT_SOURCE_DIR"

git config http.sslVerify true

git config pull.rebase false

current_branch=$(git rev-parse --abbrev-ref HEAD)

if [ "$current_branch" != "$TARGET_BRANCH" ]; then

echo "Current branch is $current_branch, switching to $TARGET_BRANCH..."

git checkout "$TARGET_BRANCH" || git checkout -b "$TARGET_BRANCH" origin/"$TARGET_BRANCH"

fi

git fetch origin "$TARGET_BRANCH"

echo "Resetting to origin/$TARGET_BRANCH..."

git reset --hard "origin/$TARGET_BRANCH"

echo "Cleaning repository..."

git clean -fdx

cd "$APP_DIR"

echo "Repository updated."

else

echo "No existing repository found. Cloning fresh into $GIT_SOURCE_DIR..."

rm -rf "$GIT_SOURCE_DIR"

git clone --branch "$TARGET_BRANCH" --single-branch "$AUTH_GIT_REPO_URL" "$GIT_SOURCE_DIR"

echo "Repository cloned."

fi

echo "Copying necessary files from $GIT_SOURCE_DIR to $APP_DIR..."

mkdir -p "$APP_DIR/src"

rm -rf "$APP_DIR/src"/* "$APP_DIR/requirements.txt"

if [ -d "$GIT_SOURCE_DIR/src" ]; then

cp -R "$GIT_SOURCE_DIR/src/." "$APP_DIR/src/"

echo "Copied src/ directory."

else

echo "Error: src/ directory not found in repository at $GIT_SOURCE_DIR/src."

exit 1

fi

if [ -f "$GIT_SOURCE_DIR/requirements.txt" ]; then

cp "$GIT_SOURCE_DIR/requirements.txt" "$APP_DIR/requirements.txt"

echo "Copied requirements.txt."

else

echo "Error: requirements.txt not found in repository at $GIT_SOURCE_DIR/requirements.txt."

exit 1

fi

echo "Necessary files copied to $APP_DIR."

echo "Installing/Updating Python dependencies from $APP_DIR/requirements.txt..."

pip install --no-cache-dir -r "$APP_DIR/requirements.txt"

cd "$APP_DIR/src"

echo "Starting bot from $APP_DIR/src/bot.py..."

exec python bot.py "$@"

Any help would be much appreciated!

docker-entrypoint.sh Dockerfile

Edited June 11, 20251 yr by Abhi